A tent like many other items is a give and take. The more you get in terms of comfort and convenience the more weight and bulk you will have to deal with.
I am fine with the capacity ratings on most tents. That being said, I usually will only share a tent with my wife and/or my kids. If I were traveling with anyone else I would likely use a lightweight one person tent. With a 1P tent you get your own private space plus it's easier to find a clear flat spot to fit the smaller footprint. Plus, if for some unforeseen reason you and your partner get separated, you still have a complete shelter system.
UL 1P tents can be found at roughly 2 pounds:
https://www.bigagnes.com/Products/Detail/Tent/FlyCreekUL1